干旱区生态环境知识资源中心(Arid): SoilNO(3)(-)storage from oasis development in deserts: Implications for the prevention and control of groundwater pollution

Arid

DOI	10.1002/hyp.13855
	SoilNO(3)(-)storage from oasis development in deserts: Implications for the prevention and control of groundwater pollution
	Qi, Shi; Liu, Wei; Shu, Heping; Liu, Fei; Ma, Jinzhu
通讯作者	Liu, W
来源期刊	HYDROLOGICAL PROCESSES
ISSN	0885-6087
EISSN	1099-1085
出版年	2020
卷号	34 期号:20 页码:3941-3954
英文摘要	The sources and storage of soil NO(3)(-)in the western Tengger Desert, Northwest China, were explored using water chemistry analysis and stable isotope techniques. In line with the expansion and development of oases, part of the desert has been transformed into cultivated land and artificial forest land. The mean soil NO(3)(-)contents found in areas of cultivated land and artificial forest were 123.06 mg kg(-1)and 1.26 mg kg(-1), far higher and slightly lower than the background desert soil values, respectively. The delta N-15-NO(3)(-)and delta O-18-NO(3)(-)values in cultivated soils ranged from 1.00 to 11.81 parts per thousand, and from -1.85 to 8.99 parts per thousand, respectively, and the mean mNO(3)(-)/Cl(-)value in cultivated soils was 2.3. These figures would appear to demonstrate that the rapid increase in the nitrate content in soils is principally due to the use of nitrogen fertilizer. Such increases in soil NO(3)(-)storage is likely to promote the leaching of nitrogen into the groundwater where coarsely textured soils exist, the pollution of water sources used for irrigation water, and extreme precipitation events. The delta N-15-NO(3)(-)and delta O-18-NO(3)(-)values in groundwater ranged from 3.72 to 6.54 parts per thousand, and from -0.19 to 12.06 parts per thousand, respectively, mainly reflecting the nitrification of soil nitrogen. These values appeared similar to those measured in the soil water in adjacent areas of cultivated land and vegetated desert, indicating that the groundwater has been affected by both natural and artificial NO3-. Artificial afforestation of desert regions would therefore seem to be a useful way of reducing the threat posed by anthropogenic sources to the circulation of NO3--N within arid regions, as well as promoting wind sheltering and sand fixation. This study explored the NO(3)(-)storage and groundwater quality responses to oasis development in arid areas in an attempt to provide effective information for local agricultural organizations and agricultural nitrogen management models.
英文关键词	desert groundwater pollution nitrate nitrogen oasis development stable isotope
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000550397200001
WOS关键词	LAND-USE CHANGE ; VADOSE ZONE ; RECHARGE ; NITRATE ; WATER ; NITROGEN ; CIRCULATION ; MANAGEMENT ; PLATEAU ; CARBON
WOS类目	Water Resources
WOS研究方向	Water Resources
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325107
作者单位	[Qi, Shi] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou, Peoples R China; [Liu, Wei] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, Peoples R China; [Shu, Heping] Lanzhou Univ, Coll Civil Engn & Mech, Key Lab Mech Disaster & Environm Western China, Minist Educ China, Lanzhou, Peoples R China; [Liu, Fei] Chinese Acad Sci, Nanjing Inst Geog & Limnol, Key Lab Watershed Geog Sci, Nanjing, Peoples R China; [Ma, Jinzhu] Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Qi, Shi,Liu, Wei,Shu, Heping,et al. SoilNO(3)(-)storage from oasis development in deserts: Implications for the prevention and control of groundwater pollution[J]. 兰州大学,2020,34(20):3941-3954.
APA	Qi, Shi,Liu, Wei,Shu, Heping,Liu, Fei,&Ma, Jinzhu.(2020).SoilNO(3)(-)storage from oasis development in deserts: Implications for the prevention and control of groundwater pollution.HYDROLOGICAL PROCESSES,34(20),3941-3954.
MLA	Qi, Shi,et al."SoilNO(3)(-)storage from oasis development in deserts: Implications for the prevention and control of groundwater pollution".HYDROLOGICAL PROCESSES 34.20(2020):3941-3954.